Here is your HTML article. It pertains to a 2012 Porsche 911 Carrera, and its less typical issue of a failing IMS (Intermediate Shaft) bearing. Note: the steps are somewhat generalized due to the vast array of specific situations that can emerge from such a repair. ```html

2012 Porsche 911 Carrera IMS Bearing Replacement

Replacing the Intermediate Shaft (IMS) bearing on a 2012 Porsche 911 Carrera can be a complex task that requires the engine to be dropped, but it is crucial as a failing IMS bearing can wreck the engine's internals. Here is a step-by-step guide.

Tools Needed

• Engine lift
• Engine stand
• Puller tools (found in IMS removal kit)
• Socket set
• Torque wrench

Diagnostics

Signs of a failing IMS bearing include strange noises coming from the engine and metallic debris in the oil. If the bearing fails completely, it can lead to catastrophic engine failure.

Step-by-Step Guide

1. Safety First:

   Disconnect the battery and properly support the vehicle on jack stands. This job involves removing the engine, thus ensuring the car is secure is vital.

2. Engine Removal:

   The engine and transmission must be removed. Ensure any electrical connections, coolant and oil lines, and the exhaust are detached.

3. Exposing the IMS Bearing:

   Remove the clutch and flywheel to access the IMS cover. This requires extreme care as the flywheel bolts are single-use only and must be replaced.

4. Bearing Removal:

   Using the puller from the IMS kit, carefully extract the old bearing and discard.

5. New Bearing Installation:

   Carefully press the new bearing into position using the press tool from the IMS kit, ensuring absolute alignment. The new bearing should come with detailed instructions which must be followed precisely.

6. Reassembly:

   Using new bolts, refit the flywheel and clutch. Refit the engine and transmission into the car, ensuring all electrical connectors and lines are securely reattached.

Warnings and Tips

• Only use Single-Row Pro IMS RetrofitTM or the Classic Single Row IMS Retrofit bearing for replacements.
• An engine stand is crucial to support the engine once it is removed from the car.
• Don't reuse flywheel bolts, always use new ones.
• Always replace the rear main seal (RMS) while you have access during this job.

Given the complexities and potential complications involved, it's a job best left to professionals. However, with the right tools, ability and patience, a skilled home mechanic can undertake this IMS bearing replacement on a 2012 Porsche 911 Carrera.

``` Please note that car repair work can be dangerous, and should only be undertaken with the proper tools, experience, and safety precautions. Specific issues may vary depending on individual vehicle conditions. This guide is a generalized approach and your situation may require more specific actions. Always consult a trained automotive professional if you are unsure.